Microgoniophotometer By: Team 11541 Sadaf Mackertich Jeffrey Herbert
Microgoniophotometer By: Team 11541 Sadaf Mackertich Jeffrey Herbert Peter Bowlin Lemuel Lebron Functional Decomposition Initialization Process Calibration Process
Measurement Process Customer Needs Specifications Complete System System Components Sample Holder RGB Light Holder Camera Zoom, F-Stop and Focus Polarizing Lens
Polarizing Lens Holder Sample Holder Balloon View Feasibility From Experiment: From Motor: From Existing Camera: F2=0.55 lbf T1=2.604 in-lbf R2=0.946 in R3=2.25 in
R1=.75 in Torque required: Solving for T1=0.173 in-lbf Sample Holder Exploded Video Camera Zoom, F-stop and Focus Balloon View Feasibility S=r S=2(c)tanc)tanc)tan c)tanc=difference between pitch circles c)tanc = r/2tan
c)tanc(c)tan1 degree) = 0.0759 in Max Stress: 6*10^5 Pa FOS:450 Camera Zoom, F-stop and Focus Exploded Video Camera Zoom, F-stop and Focus Video LED Holder Balloon View LED Holder Exploded Video
Chose A=10.00o Automated Polarizing Lens Balloon View Automated Polarizing Lens Video Light Bar Polarizer Holder Balloon View Original UML Diagram Arneys Algorithm Previously in Java MathCAD Results atch
not m Does Java Results Proposed UML Diagram State Pattern - Increases extendibility of the program by encapsulating different behaviors that a single class will exhibit into external state classes
- Reduces large clumps of ifelse blocks and case statements, thus making the code easier to read and understand Phidget Controller and Listeners - The Phidgets controller already comes with a library of functions to plug into the program - The program will make use of these various Listener interfaces to implement complete User control of the motors, needed in
adjusting zoom, focus, and fstop Strategy Pattern - The Strategy pattern will again improve the programs modularity and extendibility by encapsulating the gloss measurement algorithm as a separate. - Future revisions to the program will allow more than one algorithm to be used and selected amongst others
Builder Pattern - The Builder pattern separates data representation from manipulation so as to de-couple as many class dependencies as possible. - It will be used in the program to efficiently implement a means of providing multiple forms of output using the same resulting data Likelihood
Severity Importance Risks Action to Minimize Risk 2 2 4
Create precise CAD model Jeff, Sadaf, Pete Cannot deliver one Extremely difficult to simple to use executable program within time file frame 3 2
6 Meet with software professionals Lemuel Fail to automate device Incorrect part was ordered or delivered 1
2 2 Prioritize tasks to limit time loss Sadaf, Pete Sample loader destroys samples Function of the device is lost
Flawed design 1 2 2 Test on thinner paper and create a factor of safety. Manually controlled. Jeff 5
Sample holder fails to keep sample tight to cylinder surface Cannot acquire a proper measurement Flawed design 2 1
2 Check prototype and modify as necessary Jeff 6 Motors fail to operate under normal conditions Project will be set back until new camera is
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